Detecting quadrupole interactions in ultracold Fermi gases
Detecting quadrupole interactions in ultracold Fermi gases
We propose to detect quadrupole interactions of neutral ultra-cold atoms via their induced mean-field shift. We consider a Mott insulator state of spin-polarized atoms in a two-dimensional optical square lattice. The quadrupole moments of the atoms are aligned by an external magnetic field. As the alignment angle is varied, the …